Nano Archive

Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: a strong electrocatalyst for glucose oxidation

Cui, H. F. and Ye, J. S. and Liu, X and Zhang, W. D. (2006) Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: a strong electrocatalyst for glucose oxidation. NANOTECHNOLOGY, 17 (9). pp. 2334-2339.

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Official URL: http://www.iop.org/EJ/abstract/0957-4484/17/9/043

Abstract

A Pt-Pb alloy nanoparticle/multi-walled carbon nanotube (Pt-Pb/MWCNT) nanocomposite was prepared by electrodepositing Pt-Pb alloy onto MWCNTs that were vertically aligned on Ta plates. The 10-40 nm diameter Pt-Pb alloy nanoparticles were mainly deposited at the tips, and sparsely dispersed on the sidewalls of the bamboo-like MWCNTs, as demonstrated by scanning electron microscopy, transmission electron microscopy (TEM), and x-ray diffraction. The high resolution TEM (HRTEM) image showed a snowflake-like morphology for the Pt-Pb nanoparticles. This Pt-Pb/MWCNT nanocomposite exhibited much stronger electrocatalytic activity toward glucose oxidation than pristine MWCNTs, Pt-Pb on glassy carbon, and Pt/MWCNT and Au/MWCNT nanocomposites, in both neutral and alkaline solutions. This Pt-Pb/MWCNT nanocomposite electrode is hence promising for development as a nonenzymatic glucose sensor.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Analytical Science > Nanotechnology for sensing and actuating
Biomedical Science > Nanobiotechnology
Biomedical Science > Nanotechnology for human health
ID Code:3773
Deposited By:SPI
Deposited On:26 Jan 2009 09:49
Last Modified:19 Feb 2009 11:44

Repository Staff Only: item control page